A Clear Case of Genius : Room 40's Code-breaking Pioneer /Admiral Sir Reginald 'Blinker' Hall

This book produces the surviving chapters of an autobiography by Sir Reginald Hall, who served as the Royal Navy's Chief of Intelligence throughout the First World War, after the Admirality originally banned their publication in 1933. Presented alongside extensive commentary on the text by Philip Vickers, Hall's memoir provides unique insight into the critical role played by intelligence during the war, particularly in reference to the Zimmerman Telegram. Includes 32 pages of black and white plates.